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Correlation between the rock mass properties and maximum horizontal stress:A case study of overcoring stress measurements

2013海南省第五届生命科学联合学术会议

作者： S.M.Fu M.X.Xu S.M.Lin Z.Liang j.h.cai Department of Medical Examination Hainan Provincial People's Hospital College of Agriculture Hainan University Department of Radiotherapy Hainan Provincial People's Hospital

The association between cyclin D1 and survivin protein expressions with radiotherapy sensitivity in patients with nasopharyngeal carcinoma was *** specimens of 72 patients with nasopharyngeal carcinoma were collected before the initiation of radiotherapy(49 cases were in the radiation sensitive group and 23 cases were in the radiation insensitive group).Conventional hematoxylin and eosin(hE) staining was used for tissue *** immunohistochemical SP method was used to detect cyclin D1 and survivin protein expression *** SPSS Statistics 20 statistical software was applied for conducting the chi-squared test and the Spearman correlation *** the 72 cases,the high expression rates of cyclin D1 were 28.6%(14/49) and 69.6%(16/23) in the radiotherapy sensitive group and the radiotherapy insensitive group, respectively,and the differences between groups was statistically significant (Phe high expression rates of survivin were 34.7%(17/49) and 73.9% (17/23) in the radiotherapy sensitive group and the radiotherapy insensitive group, respectively,which differed significantly(Phe protein expressions of cyclin D1 and survivin were positively correlated(Spearman’s r = 0.353, Ph the radiosensitivity of nasopharyngeal *** D1 and survivin may be used as molecular markers to predict the sensitivity of radiotherapy.

关键词： Cyclin D1 Survivin Nasopharyngeal carcinoma

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International journal of Minerals,Metallurgy and Materials 2025年第1期32卷 39-48页

作者： Peng Li Meifeng cai Shengjun Miao Yuan Li Yu Wang Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Coal Resources and Safe Mining China University of Mining and TechnologyXuzhou 221116China

Understanding the mechanical properties of the lithologies is crucial to accurately determine the horizontal stress *** investigate the correlation between the rock mass properties and maximum horizontal stress,the three-dimensional(3D)stress tensors at 89 measuring points determined using an improved overcoring technique in nine mines in China were adopted,a newly defined characteristic parameter C_(ERP)was proposed as an indicator for evaluating the structural properties of rock masses,and a fuzzy relation matrix was established using the information distribution *** results indicate that both the vertical stress and horizontal stress exhibit a good linear growth relationship with *** is no remarkable correlation between the elastic modulus,Poisson's ratio and depth,and the distribution of data points is scattered and ***,there is no obvious relationship between the rock quality designation(RQD)and *** maximum horizontal stress σ_(h) is a function of rock properties,showing a certain linear relationship with the C_(ERP)at the same *** addition,the overall change trend of σ_(h) determined by the established fuzzy identification method is to increase with the increase of C_(ERP).The fuzzy identification method also demonstrates a relatively detailed local relationship betweenσ_h and C_(ERP),and the predicted curve rises in a fluctuating way,which is in accord well with the measured stress data.

关键词： overcoring stress measurements elastic modulus Poisson's ratio rock quality designation maximum horizontal stress fuzzy identification

Identifying the dynamic behaviors in complete reconstruction of Co-based complex precatalysts during electrocatalytic oxygen evolution

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journal of Energy Chemistry 2025年第1期100卷 226-233页

作者： jingfang Zhang Danyang Wu Linke cai Youluan Lu Fanpeng Cheng Lijuan Shi Qun Yi Yao Liu Yi huang Key Laboratory of Green Chemical Engineering Process of Ministry of Education Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education Hubei Key Laboratory of Novel Reactor and Green Chemical Technology School of Chemical Engineering & Pharmacy Wuhan Institute of Technology Key Laboratory of Pesticide & Chemical Biology of Ministry of Education Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education College of Chemistry Central China Normal University College of Materials Science and Engineering Fuzhou University

Transition metal-based nanomaterials have emerged as promising electrocatalysts for oxygen evolution reaction（OER）. Considerable research efforts have shown that self-reconstruction occurs on these nanomaterials under operating conditions of OER process. however, most of them undergo incomplete reconstruction with limited thickness of reconstruction layer, leading to low component utilization and arduous exploration of real catalytic mechanism. herein, we identify the dynamic behaviors in complete reconstruction of Co-based complexes during OER. The hollow phytic acid（PA） cross-linked CoFe-based complex nanoboxes with porous nanowalls are designed because of their good electrolyte penetration and mass transport ability, in favor of the fast and complete reconstruction. A series of experiment characterizations demonstrate that the reconstruction process includes the fast substitution of PA by Oh-to form Co（Fe）(Oh)xand subsequent potential-driven oxidation to Co（Fe）OOh. The obtained CoFeOOh delivers a low overpotential of 290 mV at a current density of 10 mA cm-2and a long-term *** experiment results together with theory calculations reveal that the Fe incorporation can result in the electron rearrangement of reconstructed CoFeOOh and optimization of their electronic structure,accounting for the enhanced OER activity. The work provides new insights into complete reconstruction of metal-based complexes during OER and offers guidelines for rational design of high-performance electrocatalysts.

关键词： Complete reconstruction Co-based complex Precatalysts Oxygen evolution reaction

Application of the improved dung beetle optimizer,muti-head attention and hybrid deep learning algorithms to groundwater depth prediction in the Ningxia area,China

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 18-23页

作者： jiarui cai Bo Sun huijun Wang Yi Zheng Siyu Zhou huixin Li Yanyan huang Peishu Zong Collaborative Innovation Center on forecast and Evaluation of Meteorological Disasters/Key Laboratory of Meteorological Disaster Ministry of Education/Joint International Research Laboratory of Climate and Environment ChangeNanjing University of Information Science and TechnologyNanjingChina Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) ZhuhaiChina China Meteorological Administration Key Laboratory of Transportation MeteorologyNanjingChina jiangsu Meteorological Observatory NanjingChina

Due to the lack of accurate data and complex parameterization,the prediction of groundwater depth is a chal-lenge for numerical *** learning can effectively solve this issue and has been proven useful in the prediction of groundwater depth in many *** this study,two new models are applied to the prediction of groundwater depth in the Ningxia area,*** two models combine the improved dung beetle optimizer(DBO)algorithm with two deep learning models:The Multi-head Attention-Convolution Neural Network-Long Short Term Memory networks(Mh-CNN-LSTM)and the Multi-head Attention-Convolution Neural Network-Gated Recurrent Unit(Mh-CNN-GRU).The models with DBO show better prediction performance,with larger R(correlation coefficient),RPD(residual prediction deviation),and lower RMSE(root-mean-square error).Com-pared with the models with the original DBO,the R and RPD of models with the improved DBO increase by over 1.5%,and the RMSE decreases by over 1.8%,indicating better prediction *** addition,compared with the multiple linear regression model,a traditional statistical model,deep learning models have better prediction performance.

关键词： Groundwater depth Multi-head attention Improved dung beetle optimizer CNN-LSTM CNN-GRU Ningxia

Stability and optoelectronic property of low-dimensional organic tin bromide perovskites

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Chinese Physics B 2021年第3期30卷 483-487页

作者： j h Lei Q Tang j he M Q cai School of Science Hunan University of TechnologyZhuzhou 412007China School of Physics and Electronics Science Hunan UniversityChangsha 410082China

The toxicity and degradation of hybrid lead-halide perovskites hinder their extensive *** is thus of great importance to explore non-toxic alternative materials with excellent stability and optoelectronic *** investigate the atomic structures and optoelectronic properties of non-toxic organic tin bromide perovskites(OTBP)with one/zerodimensional(1D/0D)structures by first-principles *** calculated atomic structures show that the 1D/0D OTBPs are stable and the structure of inorganic octahedra in 0D is higher order than that in ***,the origination of exceptional purity emitting light in experiments is explained based on the calculated electronic structure.

关键词： one/zero dimensional non-toxic organic tin bromide perovskites first principle calculation stability Optoelectronic property

Thin Film of Mesoporous MCM-41 Grown on Indium-Tin-Oxide Glass Substrate

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Chinese Chemical Letters 1999年第4期10卷 335-338页

作者： Zhang, j Xiong, hM Ding, h cai, Q Chen, jS Pang, WQ jilin Univ Key Lab Inorgan Synthesis & Preparat Chem Changchun 130023 Peoples R China jilin Univ Dept Chem Changchun 130023 Peoples R China Chongqing Teachers Coll Dept Chem Yongchuan 402168 Peoples R China

From a basic solution containing celyltrimethylammonium cations as the template, thin film of mesoporous MCM-41 has been grown on the surface of a pre-treated indium-tin-oxide conducting glass substrate. The channel axis of the film is oriented parallel with the surface plane of the substrate, and the film is stable after careful removal of template in vacuum.

关键词： mesoporous MCM-41 film ITO glass substrate basic medium synthesis

Impingement and mixing dynamics of micro-droplets on a solid surface

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Chinese journal of Chemical Engineering 2022年第12期52卷 66-77页

作者： Guina Yi Ziqi cai Zhengming Gao j.j.Derksen Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical TechnologyBeijing 100029China State Key Laboratory of Chemical Resource Engineering School of Chemical EngineeringBeijing University of Chemical TechnologyBeijing 100029China School of Engineering University of AberdeenAberdeen AB243UEUK

The hydrodynamics and mixing during the nonaxisymmetry impingement of a micro-droplet and a sessile droplet of the same fluid are investigated by many-body dissipative particle dynamics(MDPD) *** this work,the range of the impingement angle(θ_(i)) between the impinging droplet and the sessile droplet is 0°-60° and the contact angle is set as 45° or 124°.The droplets impingement and mixing behavior is analyzed based on the droplet internal flow field,the concentration distribution and the time scale of the decay of the kinetic energy of the impinging *** dimensionless total mixing time(τ_(m)) is calculated by a modified mixing *** the Weber number(We) ranging from 5.65 to22.7 and the Ohnesorge number(Oh) ranging from 0.136 to 0.214,we find rm hardly changes with We and ***,θ_(i)and surface wettability are found to have a significant effect on τ_(m).We find that θ_(i)has no clear effect on τ_(m)on a hydrophobic surface,while on the hydrophilic surface,τ_(m)increase with the θ_(i).Thus,reducing the impinging angle is a valid method to shorten the τ_(m).

关键词： Droplets impingement Mixing behavior Mixing time Concentration distribution Many-body dissipative particle dynamics

Micromagnetics and Signal Analysis of Shielded Spin-Valve Multilayer

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Chinese Physics Letters 1996年第6期13卷 469-472页

作者： ZhANG huai-wu YANG Shi-qing LIU Ying-li WANG hao-cai h.j.Kim Institute of Materials and Information Engineering University of Electronic Science and TechnologyChengdu 610054 Magnetic Alloy Laboratory Metals DivisionKorea Institute of Science and TechnologyP.O.Box 131ChenogryangSeoulKorea

In order to linearize a spin-valve giant magnetoresistance head,the exchanges layer sputtered at fringe area or a permanent magnet layer longitudinal biasing for domain stabilization based on a physical calculated model may be *** correlations between the head performance characteristic and head geometric parameters have been simulated by putting the head on a suitable front-end electric *** simulative results show that the optimal sensing current is from 10 to 40mA and the linear geometric parameteres for gap width are at the range of G_(1)+G_(2)≤0.5μm.

关键词： stabilization permanent Signal

高校突发事件中网络谣言传播模型的动力学研究

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河南师范大学学报（自然科学版） 2025年第1期53卷 50-56页

作者：高卫国蔡永丽淮阴师范学院计算机科学与技术学院江苏淮安223300 淮阴师范学院数学与统计学院江苏淮安223300

针对高校突发事件中网络谣言的传播特点,将高校人群分为无知者、传谣者和管理者(高校教师和学生志愿者宣传员)3类,建立了具有饱和接触率的谣言传播动力学模型,给出了模型平衡点的存在性,分析了平衡点的稳定性,并运用分支理论给出了hopf... 详细信息

针对高校突发事件中网络谣言的传播特点,将高校人群分为无知者、传谣者和管理者(高校教师和学生志愿者宣传员)3类,建立了具有饱和接触率的谣言传播动力学模型,给出了模型平衡点的存在性,分析了平衡点的稳定性,并运用分支理论给出了hopf分支存在的充分条件.在此基础上,借助数值模拟进一步讨论了谣言传播模型的动力学行为.结果表明:只有当管理强度足够大使得阈值条件满足时,谣言才能得到有效控制,且管理强度越大,谣言控制时间越短.这为人们制定高校突发事件中网络谣言防控措施提供了理论基础和参考依据.

关键词：网络谣言传播稳定性 hopf分支管理强度动力学

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